There are 2 LED indicators on P2500W control panel, which indicate different printer status according to different colors of the light, solid on or flashing. 

Please check the following list to identify what happened on the printer.

1. LED1 Status Indication

No.		LED1 Status Indication		Status Description
1				Paper Jam Error LED1 with red light staying on
2				Paper shortage in printing, or failed in feeding LED1 with red light flashing quickly

2. LED2 Status Indication

No.		LED1 Status Indication		Status Description
1				Alarming for toner low LED2 with orange light on and flashing quickly
2				Cartridge error (not installed, mismatch, expired) *Cleaning the contacts of both printer and cartridge helps solve unrecognizable issue LED2 with orange light staying on
3				Serious printer error (heating roller abnormalities, laser motor abnormalities, communication error, opened cover, etc.) LED2 with red light staying on

Please refer to attached User Guide for more status indication.